./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:02:14,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:02:14,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:02:14,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:02:14,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:02:14,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:02:14,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:02:14,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:02:14,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:02:14,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:02:14,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:02:14,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:02:14,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:02:14,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:02:14,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:02:14,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:02:14,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:02:14,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:02:14,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:02:14,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:02:14,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:02:14,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:02:14,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:02:14,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:02:14,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:02:14,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:02:14,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:02:14,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:02:14,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:02:14,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:02:14,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:02:14,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:02:14,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:02:14,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:02:14,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:02:14,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:02:14,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:02:14,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:02:14,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:02:14,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:02:14,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:02:14,158 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:02:14,198 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:02:14,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:02:14,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:02:14,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:02:14,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:02:14,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:02:14,205 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:02:14,206 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:02:14,206 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:02:14,206 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:02:14,207 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:02:14,208 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:02:14,208 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:02:14,208 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:02:14,209 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:02:14,209 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:02:14,209 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:02:14,210 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:02:14,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:02:14,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:02:14,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:02:14,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:02:14,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:02:14,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:02:14,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:02:14,213 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:02:14,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:02:14,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:02:14,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:02:14,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:02:14,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:02:14,216 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:02:14,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:02:14,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:02:14,217 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:02:14,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:02:14,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:02:14,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:02:14,218 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ac591932d47e9b0b8902b9705db38e4b5e721c8f02110220ca6714b79582bb [2022-11-22 02:02:14,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:02:14,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:02:14,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:02:14,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:02:14,594 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:02:14,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2022-11-22 02:02:17,719 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:02:18,269 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:02:18,270 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i [2022-11-22 02:02:18,309 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/data/63ca2cbfa/f5560e71beab4a21bd85ba6d47ba6a83/FLAGaea189c13 [2022-11-22 02:02:18,328 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/data/63ca2cbfa/f5560e71beab4a21bd85ba6d47ba6a83 [2022-11-22 02:02:18,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:02:18,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:02:18,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:02:18,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:02:18,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:02:18,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:02:18" (1/1) ... [2022-11-22 02:02:18,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e159b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:18, skipping insertion in model container [2022-11-22 02:02:18,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:02:18" (1/1) ... [2022-11-22 02:02:18,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:02:18,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:02:18,753 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2022-11-22 02:02:18,762 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2022-11-22 02:02:19,818 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:19,819 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:19,820 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:19,821 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:19,826 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:19,867 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:19,869 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:19,872 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:19,875 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:20,352 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 02:02:20,353 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 02:02:20,355 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 02:02:20,358 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 02:02:20,363 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 02:02:20,365 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 02:02:20,369 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 02:02:20,371 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 02:02:20,374 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 02:02:20,376 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 02:02:20,566 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 02:02:20,734 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:20,736 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:20,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:02:20,921 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:02:20,951 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4497,4510] [2022-11-22 02:02:20,952 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness.i[4557,4570] [2022-11-22 02:02:21,003 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:21,003 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:21,004 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:21,004 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:21,005 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:21,019 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:21,019 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:21,020 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:21,021 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:21,067 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-22 02:02:21,068 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-22 02:02:21,069 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-22 02:02:21,070 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-22 02:02:21,071 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-22 02:02:21,072 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-22 02:02:21,073 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-22 02:02:21,076 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-22 02:02:21,077 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-22 02:02:21,077 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-22 02:02:21,117 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-22 02:02:21,198 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:21,199 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-22 02:02:21,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:02:21,435 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:02:21,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:21 WrapperNode [2022-11-22 02:02:21,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:02:21,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:02:21,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:02:21,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:02:21,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:21" (1/1) ... [2022-11-22 02:02:21,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:21" (1/1) ... [2022-11-22 02:02:21,658 INFO L138 Inliner]: procedures = 690, calls = 2630, calls flagged for inlining = 61, calls inlined = 10, statements flattened = 956 [2022-11-22 02:02:21,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:02:21,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:02:21,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:02:21,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:02:21,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:21" (1/1) ... [2022-11-22 02:02:21,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:21" (1/1) ... [2022-11-22 02:02:21,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:21" (1/1) ... [2022-11-22 02:02:21,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:21" (1/1) ... [2022-11-22 02:02:21,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:21" (1/1) ... [2022-11-22 02:02:21,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:21" (1/1) ... [2022-11-22 02:02:21,737 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:21" (1/1) ... [2022-11-22 02:02:21,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:21" (1/1) ... [2022-11-22 02:02:21,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:02:21,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:02:21,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:02:21,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:02:21,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:21" (1/1) ... [2022-11-22 02:02:21,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:02:21,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:02:21,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:02:21,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:02:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2022-11-22 02:02:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2022-11-22 02:02:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-22 02:02:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-22 02:02:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:02:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-22 02:02:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-22 02:02:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2022-11-22 02:02:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:02:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:02:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:02:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:02:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:02:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-22 02:02:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-22 02:02:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:02:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:02:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:02:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:02:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:02:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-22 02:02:21,867 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-22 02:02:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:02:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:02:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 02:02:21,867 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 02:02:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:02:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:02:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:02:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-22 02:02:21,869 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-22 02:02:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:02:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2022-11-22 02:02:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:02:22,284 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:02:22,286 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:02:24,140 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:02:24,468 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:02:24,468 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:02:24,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:24 BoogieIcfgContainer [2022-11-22 02:02:24,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:02:24,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:02:24,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:02:24,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:02:24,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:02:18" (1/3) ... [2022-11-22 02:02:24,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1c928b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:24, skipping insertion in model container [2022-11-22 02:02:24,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:21" (2/3) ... [2022-11-22 02:02:24,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1c928b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:24, skipping insertion in model container [2022-11-22 02:02:24,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:24" (3/3) ... [2022-11-22 02:02:24,485 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_u8_harness.i [2022-11-22 02:02:24,505 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:02:24,506 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:02:24,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:02:24,590 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@18e096ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:02:24,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:02:24,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 50 states have (on average 1.2) internal successors, (60), 51 states have internal predecessors, (60), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-11-22 02:02:24,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-22 02:02:24,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:24,609 INFO L195 NwaCegarLoop]: trace histogram [9, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:24,610 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:02:24,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:24,619 INFO L85 PathProgramCache]: Analyzing trace with hash 199302089, now seen corresponding path program 1 times [2022-11-22 02:02:24,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:24,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523359252] [2022-11-22 02:02:24,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:24,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:36,391 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-11-22 02:02:36,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:36,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523359252] [2022-11-22 02:02:36,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523359252] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:02:36,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111247563] [2022-11-22 02:02:36,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:36,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:02:36,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:02:36,399 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:02:36,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65ec3092-a336-47de-9772-0752e9b76112/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:02:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:37,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 2703 conjuncts, 118 conjunts are in the unsatisfiable core [2022-11-22 02:02:37,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:02:37,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:02:37,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:02:37,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:02:41,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:41,726 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 02:02:41,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 68 [2022-11-22 02:02:41,738 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:41,743 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 02:02:41,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 48 [2022-11-22 02:02:41,758 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:02:41,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 39 [2022-11-22 02:02:41,910 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 52 proven. 18 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-22 02:02:41,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:02:43,265 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-11-22 02:02:57,586 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.